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Casio Exilim EX-Z85 - Test Shots - ISO Performance
Over the next few pages we show a range of test shots. On this page the full size image at the minimum and maximum ISO settings have been reduced to let you see the full image, and a series of full resolution crops have taken from original images at a range of ISO settings to show the overall image quality. These ISO test images are shot indoors using reflected natural light for maximum consistency.
This is the full frame at the minimum ISO setting.
The Z85's limited minimum shutter speed has resulted in noticeable under-exposure at 64 ISO, and even at this setting there is some image noise visible, in the colour mottling on the coloured areas.
Exposure is more accurate at 100 ISO, but the noise effects are still visible.
Noise is slightly worse at 200 ISO.
More noise at 400 ISO, but at least the overall expsoure and colour balance is still accurate, and the actual level of detail isn't too bad.
At 800 ISO the noise is becoming a real problem, and a lot of fine detail has been lost.
At 1600 ISO the noise is really bad, and the picture is barely useable.
This is the full frame at maximum sensitivity.
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